Valve-spring lifter



Oct. 49

\ H. F. MARTIN VALVE SPRING LIFTER Filed Aug. 6. 1926 Patented Oct. 4,1927.

U NIT ED STATES HERMAN F. MARTIN, 0F SULPHUR, OKLAHOMA.

VALVE-SPRING LIFTE R.

Application filed August 6, 1926. Serial No. 127,556.

This invention relates to What is commonly known in the art as a valvespring lifter, the same having more particular ref erence to anautomotive tool which is used for lifting and compressing the valvesprmgs for permitting grinding of valves, removal of the same, or tofacilitate removal and replacement of the pins which cooperate with thevalve spring cups.

My principal aim is to provide a device of this kind including a singlesuspensiondevice, a single operating lever, and multiple means forsimultaneously lifting all of the valve springs, whereby to facilitategrinding, etc.

The particular structural details constituting the novelty of theinvention Wlll become apparent from the following descr1ption anddrawings.

In the drawing *igure 1 is an end View of the device showing the mannerin which it is used.

Fig. 2 is a top plan view of the devlce by itself. 7

Fig. 3 is a perspective view of one of the props, and

Fig. 4 is a perspective view of a special bracket forming a part of thedevlce.

In carrying out the invention I employ a lifting lever 1 having a curvedinner end 2. This lever is adjustably and pivotally connected at 3 witha suspension hook 4 which is adapted to take over a relativelystationary part of the cylinder block 5. In most instances, the hookwill be constructed to engage the exhaust manifold or a part thereofas'shown in Fig. 1. The lever cooperates with a special right angularbracket 6, the vertical portion 7 of which is riveted or otherwisefastened to a connecting bar 8. The leg 9 of the bracket extends atright angles to the bar 8 and is provided with an opening 10 forreception of the upwardly directed end of the curved portion 2 of thelever.

Secured at longitudinally spaced points to this bar 8, are the cupengaging forks 11. These are shaped to receive the spring cups 12 asrepresented in Fig. 1. The arms of the forks straddle the valve stems13. In this connection, it might be stated that 14 represents theremovable pin, 15 the spring, and 16 the valve head, all of these beingof usual construction and forming no part of the invention.

In addition, the device includes what may be designated as props orbraces 17, the upper flattened ends 18 of which are secured to the bar8, and the lower ends 19 of which are shaped to rest upon the cylinderblock as shown in the drawing. These devices 17 function in steadyingthe appliance when it is in use.

In practice, the end portions of the bar 8 are placed against thecylinder block in an obvious manner and the various forks 11 are engagedwith the valve spring cups 12 in a customary manner. The hook 4 isengaged with the exhaust manifold or clamps on the latter, thuspositioning the curved end 2 of the lever 1 in a place to engage thebracket 6 so that upon moving the outer end of the lever downwardly, thedevice as an entirety may be lifted up to simultaneously compress andlift all of the springs 15, thus facili- I:

tating removal of pins, springs, and valves. The braces 17 may now bebrought into play and rested upon the cylinder block as shown in Fig. 1to maintain the springs lifted.

The advantage of a construction of this kind is clear as well as theoperation, and relative arrangement of details. Therefore, a morelengthy description is believed unnecessary.

Minor changes coming within the field of invention claimed may beresorted to if desired.

Having thus described my invention, What I claim as new is I 1. In avalve spring lifter of the class described, a mounting bar, a pluralityof forks disposed at right angles to the bar and rigidly connectedtherewith at longitudinally spaced points, depending braces carried bysaid bar, a bracket of right angular form secured to the central portionof the bar and having its horizontal portion disposed sub stantially ina plane with said forks, a single suspension hook, and an operatinglever pivotally connected with the lower end of the shank of the hook,said lever having an inner curved end cooperable with said bracket forsimultaneously lifting said bar and forks. i

2. In a valve spring lifter of the class described, a mounting baradapted for horizontal disposition in a manner to permit the oppositeends of the bar to engage a cylinder block, a plurality oflongitudinally spaced forks disposed at right angles to the bar andrigidly connected thereto, said forks being adapted to engage valvespring cups, a

bracket of right angular form secured to the central portion of the barand having its horizontal portion disposed in substantially the sameplane with said forks, said horizon- 5 ta-l portion being provided withan opening,

a suspension hook adapted to engage a stationary part of the engine, andan operating lever pivotally connected with the lower end of the shankof the hook, said lever having an inner head and end cooperable with the10 opening in said'bracket for simultaneously lifting said bar and saidforks.

In testimony whereof I aifix my signature.

HERMAN F. MARTIN.

